乙酸酐 、
palmatoside G 在
吡啶 作用下,
以78 mg的产率得到Acetic acid (2R,3R,4S,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-2-((3S,4aS,4bS,8aR,10aR)-3-furan-3-yl-4a-methyl-1,8-dioxo-1,3,4,4a,4b,5,8,9,10,10a-decahydro-2-oxa-phenanthren-8a-ylmethoxy)-tetrahydro-pyran-3-yl ester